Base Peak / Ezine
Catch your breath
Date: Apr 15, 2010
Author: Steve Down
The levels of ethanol and its metabolites have been measured simultaneously in real time in the breath exhaled through the noses and mouths of two volunteers by non-invasive sampling and SIFT MS, to give detailed information on the kinetics of ethanol decay in the blood stream.
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The use of in vitro technologies coupled with high resolution accurate mass LC-MS for studying drug metabolism in equine drug research
Date: Apr 12, 2010
Author:
Equine liver/lung microsomes/S9 tissue fractions were used to study the phase I metabolism of eight drugs of relevance to equine drug surveillance using accurate mass LC/MS, to reduce the dependence on in vivo studies.
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PCBs from scrap paper
Date: Apr 1, 2010
Author: Steve Down
Carelessly discarded newspapers and magazines contribute to the high levels of a particular PCB in river water, say US researchers. In some cases, the levels of this compound alone exceed the recommended total maximum daily load for the sum of all PCBs.
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Hair equals bone for ancient diet research
Date: Mar 15, 2010
Author: Steve Down
A new LC/MS method has been developed for measuring the delta-13C values of amino acids extracted from hair and bone. Comparison of the results indicated that hair could be an alternative medium for analysing samples from archaeological individuals for dietary reconstruction.
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The ion funnel: Theory, implementations, and applications
Date: Mar 8, 2010
Author:
Improvements in the fundamental understanding of ion motion in ion funnels, the evolution in its implementations, and the applications of the ion funnel have been reviewed.
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Paper power
Date: Mar 1, 2010
Author: Steve Down
The scope of paper spray ionisation, a new ambient ionisation technique, has been explored by its inventors. It can detect small and large molecules at ppm levels and presents a genuine opportunity for developing point-of-care applications.
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Scented human barcode
Date: Feb 15, 2010
Author: Steve Down
Humans can be identified from the ratios of characteristic scent compounds emitted from their hands, say US scientists, who have devised a human barcode based on the relative concentrations of the primary odour compounds.
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An introduction to LC/MS instrumentation applied in plant metabolomic analyses
Date: Feb 8, 2010
Author:
This review sets out to introduce the background and update the reader upon LC, high performance (HP)LC and UHPLC, as well as the large range of MS instruments that are being applied in current plant metabolomic studies.
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Remote pooling of trihalomethanes
Date: Feb 1, 2010
Author: Steve Down
The daily rhythm of disinfection by-products in a public swimming pool is linked to the opening and closing times, say Danish scientists, who measured their levels in real time with an on-site membrane inlet mass spectrometer.
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Divining dirty water
Date: Jan 15, 2010
Author: Steve Down
A broad range of pollutants has been measured in environmental water by an optimised GC/MS technique with large volume injection, after a step by step analysis of the individual processes involved.
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